castle nut

短语

[化] 槽顶螺母

词形变化

castle nuts 复数 castle nuts

释义与例句

n.
  1. 1.

    A nut with rounded extensions projecting past the nut's opening. A cotter pin is inserted through a hole in the bolt and bent around the castle nut's projections to lock the nut in place.

词源

The projections resemble the turrets of a castle.

来源：wiktionary